Europa

NASA / JPL-Caltech

Artist's concept of Europa's frozen surface. A NASA spending plan approved by the House Appropriations Committee Thursday says that no less than $100 million should be spent on planning the Europa Clipper, a planned JPL spacecraft that would explore the Jovian moon.

Artist's concept of Europa's frozen surface. A NASA spending plan approved by the House Appropriations Committee Thursday says that no less than $100 million should be spent on planning the Europa Clipper, a planned JPL spacecraft that would explore the Jovian moon.

(NASA / JPL-Caltech)

Artist's concept of Europa's frozen surface. A NASA spending plan approved by the House Appropriations Committee Thursday says that no less than $100 million should be spent on planning the Europa Clipper, a planned JPL spacecraft that would explore the Jovian moon.